53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Cursive base exception handling"""
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from cursive.i18n import _
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class CursiveException(Exception):
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"""Base Cursive Exception
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To correctly use this class, inherit from it and define
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a 'msg_fmt' property. That msg_fmt will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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msg_fmt = _("An unknown exception occurred.")
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headers = {}
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safe = False
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if not message:
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try:
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message = self.msg_fmt % kwargs
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except Exception:
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# at least get the core message out if something happened
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message = self.msg_fmt
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self.message = message
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super(CursiveException, self).__init__(message)
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def format_message(self):
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# NOTE(dane-fichter): use the first argument to the python Exception
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# object which should be our full CursiveException message
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return self.args[0]
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class SignatureVerificationError(CursiveException):
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msg_fmt = _("Signature verification for the image "
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"failed: %(reason)s.")
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